无支撑支护前排倾斜双排桩内力变形性状

Internal Force Deformation Behavior of Unsupported Double Row Piles with Inclined Front Row

以武汉长江Ⅰ级与Ⅱ级阶地过渡区某深基坑采用前排倾斜双排桩支护为例,整理了桩身水平位移监测资料并分析了其发展规律,同时又进一步建立有限元数值模型,分析了开挖过程中桩身位移与弯矩的发展规律。研究结果表明,倾斜双排桩相较于常规双排桩有一定的优越性。

Taking the front-row inclined double-row pile support for a deep foundation pit in the transition area of Wuhan Yangtze River Ⅰand Ⅱ terraces as an example,the monitoring data of horizontal displacement of pile are sorted out and its development law is analyzed.At the same time,the finite element numerical model is established to analyze the development law of pile displacement and bending moment in the process of excavation.The research results show that the inclined double row piles have certain advantages compared with the conventional double row piles.